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Solubility and Availability of Micronutrients in Relation to Phosphorus Fertilization
Author(s) -
Bingham Frank T.,
Garber M. J.
Publication year - 1960
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1960.03615995002400030025x
Subject(s) - solubility , chemistry , soil water , human fertilization , phosphorus , antagonism , micronutrient , orange (colour) , nutrient , environmental chemistry , zoology , inorganic chemistry , agronomy , food science , biochemistry , ecology , biology , organic chemistry , receptor
Availability of B, Cu, Fe, Mn, Mo, and Zn in relation to excesses of Ca(H 2 PO 4 ) 2 was studied with sour orange seedlings as indicators for induced interactions created in 19 different soils. To separate the effect of the carrier from that due to phosphorus, Ca(H 2 PO 4 ) 2 , H 3 PO 4 , KH 2 PO 4 , and NH 4 H 2 PO 4 sources were also used in a separate experiment. Chemical analyses of water extracts from the latter experiment provided the solubility data as controlled by excesses of P. Regardless of sources, excess P resulted in acute Cu deficiency; and in the case of acid soils, reduced uptake of B and Zn usually followed excess P fertilization. Excessive P fertilization of acid soils resulted in increased Mn and Mo uptake, whereas in alkaline soils excessive P reduced the availability of Mo. Solubility of Mn, B, and Mo Paralleled uptake data. Cu and Zn Solubilities were increased by excessive P fertilization. Mechanisms pertinent to the various P interactions are discussed with the major emphasis placed on P‐Cu antagonism.